The Collaborative International Dictionary of English v.0.48:

Mummify \Mum"mi*fy\, v. t. [imp. & p. p. Mummified; p. pr. &
   vb. n. Mummifying.] [Mummy + -fy: cf. F. momifier.]
   To embalm and dry as a mummy; to make into, or like, a mummy.
   --Hall (1646).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

mummify \mum"mi*fy\ v. i.
   To turn into a mummy-like corpse; to dry up with unusually
   little decomposition; -- said of dead animals; as, A
   mummified body was found in the attic.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

mummify
    v 1: preserve while making lifeless; "mummified ideas and
         institutions should be gotten rid of"
    2: remove the organs and dry out (a dead body) in order to
       preserve it; "Th Egyptians mummified their pharaohs"
    3: dry up and shrivel due to complete loss of moisture; "a
       mummified body was found" [syn: mummify, dry up]

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "mummify":
   air-dry, anhydrate, bake, blast-freeze, blot, brine, brush, burn,
   corn, cure, dehumidify, dehydrate, desiccate, drain, dry, dry up,
   dry-cure, dry-salt, embalm, evaporate, exsiccate, fire, freeze,
   freeze-dry, fume, insolate, irradiate, jerk, kiln, kipper, lay out,
   lie in state, marinade, marinate, mummy, parch, pickle,
   preservatize, quick-freeze, refrigerate, rub, salt, scorch, sear,
   season, shrivel, smoke, smoke-cure, soak up, sponge, stuff, sun,
   sun-dry, swab, torrefy, towel, weazen, welter, wilt, wipe, wither,
   wizen